CN102213396A - Parabolic reflector and related led lighting device - Google Patents

Parabolic reflector and related led lighting device Download PDF

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Publication number
CN102213396A
CN102213396A CN2011100817733A CN201110081773A CN102213396A CN 102213396 A CN102213396 A CN 102213396A CN 2011100817733 A CN2011100817733 A CN 2011100817733A CN 201110081773 A CN201110081773 A CN 201110081773A CN 102213396 A CN102213396 A CN 102213396A
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CN
China
Prior art keywords
paraboloid
led lighting
light emitting
emitting source
lighting apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100817733A
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Chinese (zh)
Inventor
V·朱塞佩
M·鲁卡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Khatod Optoelectronic Srl
Original Assignee
Khatod Optoelectronic Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Khatod Optoelectronic Srl filed Critical Khatod Optoelectronic Srl
Publication of CN102213396A publication Critical patent/CN102213396A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/048—Optical design with facets structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

Axial symmetric parabolic reflector (30) for a led lighting device (10) provided with at least a LED lighting source (20), the axial symmetric parabolic reflector (30) comprises an opening (35) and it is positionable in a position in which it surround the at least a LED lighting source (20) for reflect and distribute in homogeneous way a light flux toward the opening (35). The parabolic reflector (30) comprises a mask (40) which is made integral with the same, besides the mask (40) being positionable in proximity of the at least a LED lighting source (20) in a way to results substantially orthogonal to a longitudinal direction (90) in order to avoid the direct eyesight of the at least a LED lighting source through the opening (35). The mask (40) comprises a reflecting surface (45) which includes a reflecting axial symmetric groove (47) having a section substantially shaped as a ''3'' in order to obtain an high luminous efficiency. The parabolic reflector (30) comprises besides at least a filter or a lens in order to avoid the glare by indirect light of the at least a LED lighting source (20).

Description

Paraboloid and relevant LED lighting apparatus
The present invention relates to paraboloid and relate to relevant LED lighting apparatus, particularly, the present invention can be used as LED Down lamp (downlight) or uses as the LED lamp.
The objective of the invention is to, realize being used for the paraboloid and the relevant LED lighting apparatus of LED lighting apparatus, described paraboloid and relevant LED lighting apparatus avoid directly (direct) LED polished bard hurt sb.'s feelings and allow to have even light distribution simultaneously.
Another purpose is, realizes being used for the paraboloid and the relevant LED lighting apparatus of LED lighting apparatus, the part count that described paraboloid and relevant LED lighting apparatus are avoided stabbing people and had minimizing simultaneously.
Another purpose is again, paraboloid that is used for the LED lighting apparatus that realization can be easy to produce and relevant LED lighting apparatus.
Other purposes are that realization can have the paraboloid that is used for the LED lighting apparatus and the relevant LED lighting apparatus of advantage economically.
According to the present invention, these purposes are reached like this, promptly realize the paraboloid according to claim 1 and the 12 described LED of being used for lighting apparatus and relevant LED lighting apparatus.
Other features of the present invention describe in appending claims.
With reference to appended schematic figures, from appended illustrating and the nonrestrictive specification, will become more obvious according to the feature and advantage of the paraboloid of the LED of being used for lighting apparatus of the present invention and relevant LED lighting apparatus, in described accompanying drawing:
Fig. 1 is the three-dimensional top view according to the outstanding horizontal right side of the preferred form of the embodiment of the paraboloid that is used for the LED lighting apparatus of the present invention;
Fig. 2 is the top view of the paraboloid of Fig. 1;
Fig. 3 is the outstanding front view of cutting open according to the preferred form of the embodiment of paraboloid of the present invention;
Fig. 4 is the outstanding front view of cutting open according to another form of the embodiment of paraboloid of the present invention; And
Fig. 5 is the outstanding front view according to the decomposition of the preferred form of the embodiment of the LED lighting apparatus that is equipped with paraboloid of the present invention.
With reference to accompanying drawing, described accompanying drawing illustrates axial symmetry paraboloid 30, paraboloid 30 is used to be equipped with the LED lighting apparatus 10 of at least one LED light emitting source 20, described axial symmetry paraboloid 30 comprises that opening 35 and axial symmetry paraboloid 30 can settle on such position, promptly center on described at least one LED light emitting source 20, be used in even mode towards described opening 35 reflection and distribute light flux at described position axis symmetry paraboloid 30.
According to the present invention, described paraboloid 30 comprises shade 40, shade 40 is made into integration with paraboloid 30, preferably, be made into integration with paraboloid 30 by a plurality of connectors 42 with elongated shape, and described shade 40 is sentenced the mode that causes basically perpendicular to longitudinal direction 90 at close described at least one LED light emitting source 20 and can be settled, thereby avoids directly visual to described at least one LED light emitting source by described opening 35.
By this way, valuably, described shade 40 improves the illumination profile of LED lighting apparatus 10, and shade 40 also allows to reduce the brightness of described luminous flux, reduces the possibility of stabbing people that the direct sunshine that sent by described at least one LED light emitting source 20 causes thus.
Preferably, described paraboloid 30 and described shade 40 are implemented as only parts with polymeric material, described polymeric material for example is Merlon and/or polycarbonate derivatives, described polymeric material is by surface metalation, so that reflecting surface can reflect the described luminous flux with described at least one led light source 20 of diffusion.
Valuably, this allows minimizing, the minimizing of gross weight and the simple production of carrying out continuously with high production rate of parts, and has the cost of reduction thus.
Preferably, described shade 40 is equipped with reflecting part 45, reflecting part 45 near at least one LED light emitting source 20 place in the face of at least one LED light emitting source 20, described reflecting part 45 is equipped with the part that is configured as tip basically, especially, described tip is the projection that is configured as tip basically, and described projection is 45 outstanding from described reflecting part, is used for towards described paraboloid 30 reflection flux laterally.
Valuably, this allow to increase the illumination efficiency of LED lighting apparatus 10, and that avoids simultaneously that people are subjected to that direct sunshine causes stabs.
In addition, can cooperate and allow and mix and the distribute light flux in even mode on bigger surface in described reflecting part 45 with described paraboloid 30, and the described opening 35 by described paraboloid 30 sends the luminous flux with the brightness that reduces thus.
Preferably, described shade 40 comprises axial symmetry groove 47, and axial symmetry groove 47 is shaped as " 3 " of realizing in described reflecting part 45 basically.
Especially, described paraboloid 30 is directly installable on the electron plate 50 that comprises described at least one LED light emitting source 20, and the described axis of reflection symmetrical grooves 47 of described by this way shade 40 faces described at least one LED light emitting source 20.
Valuably, this form shows high illumination efficiency from the angle of experiment, and allows to reduce the number of parts, avoids the demand to the support member between described paraboloid 30 and the described electron plate 50.
Especially, described shade 40 causes coaxial with second opening 48 of described paraboloid 30 basically, and shade 40 is placed at second opening, 48 places near paraboloid 30, described second opening 48 allows the correct coupling of described paraboloid 30 and described electron plate 50, avoids described paraboloid 30 and coupling and described at least one LED light emitting source 20 of described electron plate 50 to interfere.
Preferably, described paraboloid 30 comprises at least one filter outer cover 34 or at least one lens outer cover 34, be preferably annular or rectangle, this at least one filter outer cover 34 or at least one lens outer cover 34 can settled near described opening 35 places.
Preferably, this allows easily to insert at least one lens or at least one filter, enters described LED lighting apparatus to prevent dust or water.
In addition, preferably, described paraboloid 30 comprises at least one filter or at least one lens, is stabbed by the indirect light that the indirect light of at least one LED light emitting source 20 causes with restriction, and described indirect light is by described paraboloid 30 reflections.
In addition, described at least one outer cover 34 preferably includes the supporting part that is used for polymer pad, thereby makes that described LED lighting apparatus 10 is waterproof, valuably, carries out in the mode of outdoor lighting at a kind of LED of use lighting apparatus 10.
Valuably, as shown in Fig. 3 and 4, described paraboloid 30 inside comprise and are shaped as the shape with the truncated pyramid at the bottom of the regular polygon basically.
Especially, as shown in Fig. 1 and 2, described paraboloid 30 inside comprise such shape, and the lines of described shape are shaped as " cobweb " shape basically.
Valuably, this allows to obtain better luminous flux guiding.
In addition, described paraboloid 30 preferably is divided into a plurality of radial districts 33 in inside, and especially, described paraboloid 30 preferably is divided at least 11 radial districts 33, especially, is divided at least 20 radial districts 33.
Valuably, this permission redistributes described luminous flux in even mode, also reduces the problem that people are stabbed by indirect light.
Preferably, each radial district 33 comprises a plurality of protruding 32 or cave in 32, especially, a plurality of protruding 32 or cave in and 32 be shaped as basically that " (", projection (32) or depression (32) are to be placed along direction 92 modes adjacent one another are parallel with the bus of described truncated pyramid.
Valuably, this allows to obtain the high evenly illumination profile of luminous flux and have the brightness that reduces.
With reference to Fig. 5, according to a further aspect in the invention, the invention provides a kind of LED lighting apparatus 10, described LED lighting apparatus 10 comprises at least one LED light emitting source 20, at least one LED light emitting source 20 generates 90 luminous flux along the longitudinal direction, and LED lighting apparatus 10 comprises at least one paraboloid that meets aforementioned type 30.
Preferably, described at least one LED light emitting source 20 comprises at least 1 watt, especially, and at least 3 watts power.
Preferably, described LED lighting apparatus 10 comprises at least one filter or at least one lens that are placed in described at least one outer cover 34, and especially, LED lighting apparatus 10 also comprises the annular polymeric pad, enters into the inside of described LED lighting apparatus 10 to prevent water.
Valuably, by this way, by at least one lens, possible is to make the light of reflection or indirect light cause the possibility of stabbing to reduce to minimum, and make the brightness of LED lighting apparatus 10 be reduced to minimum.
Valuably, by being equipped with described reflecting part 45, especially, the described shade 40 that equipment has described axial symmetry reflection recess 47, and by described at least one lens or described at least one filter, possible is, makes as direct or indirect light to cause the possibility of stabbing to reduce to minimum to people, keeps simultaneously and does not possess general ambient light efficient identical under the situation of shade 40 at the LED lighting apparatus.
By this way, what it has been seen in that is to have reached aforesaid purpose according to the paraboloid of the LED of being used for lighting apparatus of the present invention and the LED lighting apparatus of being correlated with.
The paraboloid of the LED of being used for lighting apparatus of the present invention reaches relevant LED lighting apparatus thereby is considered to carry out multiple modification and variation, and all these modifications and variation all are included in the same inventive concept.
In addition, in practice, employed material and size thereof and parts can change according to technical demand.

Claims (14)

1. an axial symmetry paraboloid (30), described axial symmetry paraboloid (30) is used to be equipped with the LED lighting apparatus (10) of at least one LED light emitting source (20), described axial symmetry paraboloid (30) comprises opening (35), and described axial symmetry paraboloid (30) can be settled in such position, promptly described axial symmetry paraboloid (30) centers on described at least one LED light emitting source (20) in described position, thereby reflect and the distribute light flux towards described opening (35) in even mode, it is characterized in that, described axial symmetry paraboloid (30) comprises the shade (40) that is made into integration with described axial symmetry paraboloid (30), and described shade (40) is sentenced the mode that causes basically perpendicular to longitudinal direction (90) at close described at least one LED light emitting source (20) and can be settled, thereby avoids directly visual to described at least one LED light emitting source by described opening (35).
2. paraboloid as claimed in claim 1 (30), it is characterized in that, described paraboloid (30) and described shade (40) are implemented as only parts with polymeric material, and described polymeric material for example is Merlon and/or polycarbonate derivatives.
3. paraboloid as claimed in claim 1 (30), it is characterized in that, described shade (40) is equipped with reflecting part (45), and described reflecting part (45) are in the face of described at least one LED light emitting source (20) locating near described at least one LED light emitting source (20).
4. paraboloid as claimed in claim 3 (30) is characterized in that, described reflecting part (45) are equipped with the part that is configured as tip basically, thereby towards described paraboloid (30) reflection flux laterally.
5. paraboloid as claimed in claim 3 (30), it is characterized in that, can cooperate with described paraboloid (30) and allow and mix and the distribute light flux in even mode on bigger surface in described reflecting part (45), the described opening (35) by described paraboloid (30) sends the luminous flux with the brightness that reduces by this way thus.
6. paraboloid as claimed in claim 3 (30) is characterized in that, described shade (40) comprises axial symmetry groove (47), and described axial symmetry groove (47) is shaped as " 3 " of realizing in described reflecting part (45) basically.
7. paraboloid as claimed in claim 1 (30), it is characterized in that, described paraboloid (30) is comprising that on the electron plate (50) of described at least one LED light emitting source (20) be directly installable, and the described axis of reflection symmetrical grooves (47) of described by this way shade (40) faces described at least one LED light emitting source (20).
8. paraboloid as claimed in claim 1 (30), it is characterized in that, described paraboloid (30) comprises at least one filter outer cover (34) or at least one lens outer cover (34), and described at least one filter outer cover (34) or at least one lens outer cover (34) are positioned near described opening (35) and locate.
9. paraboloid as claimed in claim 8 (30) is characterized in that, described at least one outer cover (34) comprises the supporting part that is used for polymer pad, thereby makes that described LED lighting apparatus (10) is a waterproof.
10. paraboloid as claimed in claim 1 (30), it is characterized in that, described paraboloid (30) inside comprises basically as has the shape of the truncated pyramid at the bottom of the regular polygon, and described paraboloid (30) also is divided into a plurality of radial districts (33) in inside, especially, described paraboloid (30) is divided at least 11 radial districts (33).
11. paraboloid as claimed in claim 10 (30), it is characterized in that, each described radial district (33) comprises and a plurality ofly is shaped as basically that " projection of (" (32) or depression (32), described projection (32) or depression (32) are to be placed along direction (92) mode adjacent one another are.
12. a LED lighting apparatus (10), described LED lighting apparatus (10) comprising:
At least one LED light emitting source (20), described at least one LED light emitting source (20) generates the luminous flux of (90) along the longitudinal direction, and
At least one is according to each the paraboloid (30) among the claim 1-11.
13. LED lighting apparatus as claimed in claim 12 (10) is characterized in that, described at least one LED light emitting source (20) presents at least 1 watt, especially, and at least 3 watts power.
14. LED lighting apparatus as claimed in claim 12 (10) is characterized in that, described LED lighting apparatus (10) comprises at least one filter or at least one lens that are placed in described at least one outer cover (34).
CN2011100817733A 2010-04-09 2011-04-01 Parabolic reflector and related led lighting device Pending CN102213396A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A000592A IT1399369B1 (en) 2010-04-09 2010-04-09 PARABOLIC REFLECTOR AND RELATIVE LED LIGHTING DEVICE
ITMI2010A000592 2010-04-09

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CN102213396A true CN102213396A (en) 2011-10-12

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US (1) US20110249445A1 (en)
EP (1) EP2375138B1 (en)
CN (1) CN102213396A (en)
IT (1) IT1399369B1 (en)

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WO2013131385A1 (en) * 2012-03-07 2013-09-12 深圳和而泰照明科技有限公司 Luminous structure and led lamp with same
CN104501011A (en) * 2014-12-22 2015-04-08 成都奥晶科技有限责任公司 LED lamp with reflection unit
CN110056840A (en) * 2019-03-29 2019-07-26 天津同诚伟业科技有限公司 A kind of dedicated floodlight reflector in high salt fog area

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CN103244906A (en) * 2012-02-10 2013-08-14 伊古齐尼照明有限公司 Uniform lighting reflector for lighting apparatuses
WO2013131385A1 (en) * 2012-03-07 2013-09-12 深圳和而泰照明科技有限公司 Luminous structure and led lamp with same
CN104501011A (en) * 2014-12-22 2015-04-08 成都奥晶科技有限责任公司 LED lamp with reflection unit
CN110056840A (en) * 2019-03-29 2019-07-26 天津同诚伟业科技有限公司 A kind of dedicated floodlight reflector in high salt fog area

Also Published As

Publication number Publication date
IT1399369B1 (en) 2013-04-16
EP2375138A1 (en) 2011-10-12
US20110249445A1 (en) 2011-10-13
EP2375138B1 (en) 2014-02-26
ITMI20100592A1 (en) 2011-10-10

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Application publication date: 20111012